Maybe he dumped it because one of the twenty people he drifted around called the police on him for being an asshole. If he stands by the side of the road waiting for a recovery vehicle the cops are going to put two and two together when they drive past.

Hi. Please document this. If you can be bothered get a statutory declaration from a police station and have it witnessed by an officer. You may not want to challenge this man now but I guarantee you need to start accumulating evidence for when he inevitability fucks up so bad you need to lay the hammer down. He is an ignorant ahole.